#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<sys/types.h>
int main()
{
  pid_t id=fork();
  if(id<0)
  {
    perror("fork");
  }
else if(id==0)
  {
    while(1)
    {
      printf("I am child pid: %d,ppid: %d\n",getpid(),getppid());
      sleep(3);
      break;
    }
    exit(0);
  }

  
  
  else{
    while(1)
    {
      printf("I am parent pid: %d,ppid: %d\n",getpid(),getppid());
      sleep(1) ;  
    }

  
}
  return 0;
}
